The electronic absorption spectra of C-60 and C-70 are simulated with
the help of semiempirical quantum-chemical calculations. It is shown t
hat the main features observed experimentally are satisfactorily repro
duced by the calculations. Double-excited configurations are necessary
to correctly describe the lowest excited states of C-70 and dipole-al
lowed excited states are computed to be very close to the lowest excit
ed state S-1. Preliminary results on the simulation of the fluorescenc
e spectrum of C-70 are discussed.